MCQ
Ionisation potential values of $d-$ block elements as compared to ionization potential value of $ f-$ block elements are
- ✓Higher
- BEqual
- Clower
- DAll of these
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$(I)\, s-$ orbital of $A$ and $P_x$ -orbital of $B$
$(II)\, s-$ orbital of $A$ and $P_z$ orbital of $B$
$(Ill)\, p_y$ -orbital of $A$ and $p_z$ orbital of $B$
$(IV)\, s-$ orbital of both $(A)$ and $(B)$

$(A)$ $3$ electrons in neutral medium
$(B)$ $5$ electrons in neutral medium
$(C)$ $3$ electrons in alkaline medium
$(D)$ $5$ electrons in acidic medium